2710×59+313÷89.123-179×0.05÷13134×(137+137+137+137)[2034-(29+14)×36]÷78(1-14)÷(2.1-25×1.5)23×[2.83-(0.83+57)]÷47.-数学
5 |
9 |
1 |
3 |
8 |
9 |
=
3 |
2 |
15 |
4 |
=
21 |
4 |
(2)1
2 |
3 |
7 |
9 |
1 |
3 |
=1
2 |
3 |
4 |
45 |
1 |
3 |
=1
2 |
3 |
4 |
15 |
=1
2 |
5 |
(3)1
3 |
4 |
3 |
7 |
3 |
7 |
3 |
7 |
3 |
7 |
=1
3 |
4 |
3 |
7 |
=10;
(4)[20
3 |
4 |
2 |
9 |